Michael hurly



Axn/LHUMJY; HEATING RAILWAY GARS.

Patented Nov. 27. 1883,.

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ATTORNEYS.

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UNH@ STATES PATENT Ormes,

MICHAEL HUB-LY, OF QUEBEC, PROVINCE OF QUEBEC, CANADA.

`H EATI Ne RAI LwAY-CARS.

"SPECIFICATIGNfforming part o f Letters Patent No. 289,265, datedNovember 27', 1888.

kppllcation led February Q6, 1883. (No model.) `Patented in Canalla May4. 1382, No. 14,702.

\ To all whom, `it may concern,.-

Beit known that I, MICHAEL HURLY, a subject of theQueen ofGreatBritain,residing at Quebec, in the Dominion of Canada, have invented a new anduseful Improvement in Safety-Couplingsfor Steam-Heating Pipes foi` i;;Railway-Cars, of which the following is a full,

clear, and exact description, reference being '-haduto the annexeddrawings, forming part of this speciiication.

` Thisginvention relates more particularly to safety-couplings forconnecting steam-conducting pipes between railway-cars, and theinvention consists of the novel features of construction hereinafterdescribed and claimed.

In the drawings, Figure lis a side elevation of two railway-trucks,showing my invention, and Fig. 2 is a longitudinal section of thecoupling for the steam-pipes. Fig. 3 is a perspective view of thecoupling-hook.

It is common to arrange steam-pipes underneath railway-cars and couplethem together by means of couplings having a sliding joint at thecenter, and adapted to form ballandsocket joints with the pipes. While Iemploy such a coupling in my invention, I connect the two sliding partsof the coupling together by a spiral spring, in order that said partsshall not be separated, to the end of securing a more perfectsteam-tight joint, and provide an independent safety-coupling at a pointbeyond the main coupling.

A B indicate two sections of steam-pipe secured underneath the trucksOD, respectively, and connected by the couplings E F. The coupling'Econsists of the sections G and H, one of which is adapted to slide inthe other, with a packing, I, between them, and which formballand-socket joints J J with the sections K L. The sections G H areprovided with external threads, M, and transverse recesses N, in whichrecesses the ends of a spiral spring, O, inclosing said sections, aresecured by annular nuts P, screwing over the same. The sections K L areformed of two parts, da', one screwing into the other, and over theparts a, which are eX- ternally threaded, are screwed collars Q Q',which also screw over the metallic ends b of ,j d l the be1lows-likecasing R. Over one of the parts, a', is screwed a section, S, having areduced portion, c, and packing d, to form a steam-tight joint with asection, T, which is held in engagement with the section S by the doublehook S' and the pins or lugs T' on said sections, respectively. Thesection 'I screws into the pipe B, and the part c' of the section Kscrewsinto the pipe A. The pivoted hooks S are provided with aretainingspring, R', and ,by means of a projection, e, on the hooks achain, P', which is hooked to the pipe A, is to be attached to saidhooks when the train is made up. When the cars are separated, either byaccident or design, the tension thrown upon the chain will oscilla-tethe double hook againstthe tension of its retainingspring, as shown indotted lines, and uncouple the sections S T without interfering with thecoupling E.

To prevent danger from the escape of steam the truck D becomesaccidentally detached from the truck C. The tension thus put upon thewire J' will draw the rod M' rearward, and thus depress the valve-leverO' to the position for shutting off steam. As soon as the said lever isthus operated the rod M' will cease to yield to the tension exerted bywire J', owing to the shortness ofthe wire N', and the increased tensionexerted upon the catch L' and on the pointof the spring K' will causethe catch to be releasedffrom the spring, when the wire J will bewdetached from the rod VM. In this manner thesteam is automaticallyshutoff quite or nearly simultaneously with the uncoupling of the cars, andall danger from accidental escape of steam is thereby avoided. j,

The bellows-like casing R is formed of a coilspring having a suitablefabric wrapped around the same and drawn inward by a continuous cord,M2, to form creases between the folds of the wire.

The main leading heating-pipe may be either IOO of iron or vulcanizedindia-rubber or similar materials. Should th e former be used, by irinlysecuring it underneath the cars at a point in their center, suficientspring will be had to allow of the ends having any requisite direction,for the purpose of connection by link, andwould be a matter ofconvenience. The ends are to be secured by clips to the wood-work of thecars.

It is intended to distribute the heat through the several cars by meansof pipes tapping the main leader, the direction or position of whichmust be determined or controlled by convenience. The requisite valves,stop-cocks, Snc., must also be regulated by the construction ofdifferent railway cars. Under each main leader it is intended to placetwo condensers to receive and disch arge the water, which wouldotherwise obstruct the passage of the steam through the main leader. Themain leader is to be incased with two coverings of vulcanizedindia-rubber, to prevent contact with the cold air, thereby avoiding therapid condensation of steam.

What I claim as new, and desire to secure by Letters Patent, is-

1. rlhe conibinatiomwith the sections G and H,.for1ning a sliding jointwit-h each other, of the spiral spring O, having its ends secured tosaid sections, respectively, substantially as shown and described,whereby said sect-ions shall accommodate themselves to the movements ofthe cars, but shall not Abe uncoupled from each other.

2. The combination, with the pipes AB, of 3 5 the coupling E, having thesections G and H. formed with a sliding joint at their juncture andball-and-socket joints at the ends, and the spiral spring O, connectingthe sections G and H, to prevent separation thereof, and the 4o couplingF, adapted for uncoupling the pipes, substantially as shown anddescribed.

3. The combinatiomwith the pipes AB and the sliding coupling E, ofthecoupling F, the spring-retained hook S', and the chain P, con- 45nected to said hook and adapted to uncouple the latter coupling automati cally, substantial] y as shown and described.

4. The combination, with the pipes A B and meansfor uncoupling themautomatically, of 5o the Wires J and N and the rod M', construct` ed andarranged as described, and adapted to operate the valve-lever O', toshut off steam simultaneously with the accidental uncoupling of theears, as specified. l 55 5. The bellows-like casing It, formedof acoil-spring having a fabric wrapped around the same and drawn inwardbetween the folds of the Wire byacontinuous cord, substantially as shownand described.

. MICHAEL' HURLY.

lVitnesses:

F. ONEILL, Trios. J. OLivnn.

